# A073075 (b-file synthesized from sequence entry) 0 1 1 2 2 6 3 22 4 86 5 358 6 1554 7 6950 8 31822 9 148434 10 702802 11 3369046 12 16319050 13 79749294 14 392711090 15 1946732854 16 9706813790 17 48651303118 18 244972282734 19 1238621756174 20 6286144819506 21 32011282859598 22 163517409895602 23 837631563577814 24 4301996341244810